Operator Panel Service Check - Lexmark X203N Service Manual

Operator panel service check

Inspect the operator panel cable for damage. Make sure the cable is plugged in securely.
POR the MFP, and check each light for proper operation.
Operator panel service check
FRU
Operator panel
Controller card
Action
Buttons
Check connector J4, pin 2 for 3.3 V.
If the voltage is present, replace the
operator panel. If the voltage is not
present, replace the controller card.
Perform the panel test and button
tests found in diagnostics. See
"Panel Test" on page 3-5
and"Button Test" on page
the tests fail, replace the operator
panel.
Lights
If the lights don't illuminate, make
sure the cable is properly connected
to the controller card and the
operator panel. Ensure the controller
card has input voltage to it.
Verify +24 V dc on cable pins 8 and
9 at J22.
• Check for +5 V dc at J4, pin 1.
See "Controller card service
check" on page 2-25 or
for more information.
• If these voltages are not correct,
replace the controller card.
• If these voltages are correct,
replace the operator panel.
If more than one light does not turn
on or an individual light stays on
solid during POST, replace the
operator panel.
If all lights are dim and operate
erratically during POST or all lights
come on and stay on solid during
POST, replace the FRUs in the
following order one at a time:
• Controller card
• Operator panel
3-5. If
page 4
Diagnostic information
7011-2xx
2-31